Elden grows wheat on his land. However, his wheat farm is on a steep slope and hence more prone to soil erosion. In order to prevent soil erosion, he rotates wheat with soybean. What type of soil conversion method did Elden use? A: cover cropping and mulching B: crop rotation C: contour farming D: Terrance farming
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answer: the primary difference between a hypothesis and a theory is that b hypothesis is falsifiable, but a theory has been proven to be correct. theory is an explanation of something that is happening but hypothesis is a guess of something that can happen

explanation:

c. because step up transformer steps up the input voltage i.e increases the input voltage  

the number of turns are greater on the secondary side of step up transformer  

transformer does not handle dc current

answer : a model is often used to explain and make things easier to understand when any scientific topic needs to be demonstrated and explained.

as in this case where a scientist wants to use a model to present the results of his detailed scientific investigation. he should do it as it will him to make the audience understand the concept in a much better way. also, it can be changed according to new scientific understandings.